#d1 {
    width: 100%;
    height: 65px;
    border-bottom: 1px solid black;
}
#d2 {
    width: 25%;
    height: 620px;
    float: left;
    border-right: 1px solid black;
    text-align: center;
}
#d3 {
    width: 74%;
    height: 620px;
    float: left;
}
a {
    text-decoration: none;
    color: black
}
tr {
    height:40px;
}
.kebiao {
    margin-top: 200px
}